describe an experiments to show that ochaled air
Cartain carbon dioxide​

Answers

Answer 1

Answer:

Let's find out if exhaled air contains carbon dioxide.

Take a glass and fill it up with some limewater. ... The limewater turns milky. This goes to show that the carbon dioxide present in the exhaled air turns the limewater chalky. The limewater turns from clear and colourless to chalky.

Explanation:


Related Questions

Choose the correct connective tissue.

1)Bone to bone
2)Muscle to muscle

-ligament
-tendon

Answers

Explanation:

A tendon is a fibrous connective tissue which attaches muscle to bone. Tendons may also attach muscles to structures such as the eyeball. A tendon serves to move the bone or structure. A ligament is a fibrous connective tissue which attaches bone to bone, and usually serves to hold structures together and keep them stable.

A tendon is a fibrous connective tissue which attaches muscle to bone.

A ligament is a fibrous connective tissue which attaches bone to bone.

What is tendons and its function?

A tendon is a cord of strong, flexible tissue, similar to a rope. Tendons connect your muscles to your bones. Tendons let us move our limbs. They also help prevent muscle injury by absorbing some of the impact your muscles take when you run, jump or do other movements.

What is ligament and its function?

Ligaments often connect two bones together, particularly in the joints: Like strong, firmly attached straps or ropes, they stabilize the joint or hold the ends of two bones together. This ensures that the bones in the joint don't twist too much or move too far apart and become dislocated.

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When the computer you are working on uses energy it also produces waste energy. What type of energy is this waste energy

Answers

Heat and chemical energy

Answer:

Chemical energy

Explanation:

I just took the exam!!

Hope this helps!!

Have a blessed day/night <333

How is form used in classification?

Answers

Form classification is the classification of organisms based on their morphology, which does not necessarily reflect their biological relationships. Form classification, generally restricted to palaeontology, reflects uncertainty; the goal of science is to move "form taxa" to biological taxa whose affinity is known.

The main reason why this type of model would be developed is that an animal cell
A. is too large to be observed directly
B. is too small to be observed directly
C. moves too quickly to observe directly
D. poses too much risk to observe directly

Answers

the answer is B i believe

Rewrite the TEKS for taxonomy as if you were explaining it to a kindergartener.

(A) define taxonomy and recognize the importance of a standardized taxonomic system to the scientific community;

(B) categorize organisms using a hierarchical classification system based on similarities and differences shared among groups; and

(C) compare characteristics of taxonomic groups, including archaea, bacteria, protists, fungi, plants, and animals.

Answers

A I feel like the others don’t make sense ,

describe the structure of an atom of argon-38 and argon-40

Answers

Answer:

Argon 38 has 18 proton and 20 neutron

Argon 40 has 18 proton and 22 neutron

Explanation:

isotope is same no of proton diff no of neutron

Both argon-38 and argon-40 have 18 protons but they have different atomic masses. The atomic mass of argon-38 is 38u while the atomic mass of argon-40 is 40u. Thus, they are isotopes.

What are isotopes? Some atoms contain the same number of protons (i.e. same atomic number) but they have a different number of neutrons (i.e. different mass numbers). These types of atoms are called isotopes.Argon element has three isotopes namely, argon-36, argon-38 and argon-40. All the three isotopes of argon have the same number of protons i.e. 18. But, all have different numbers of neutrons and thus, different mass numbers. Argon-36 has 18 neutrons, argon-38 has 20 neutrons and argon-40 has 22 neutrons. Thus, the mass numbers of argon-36, argon-38 and argon-40 are 36u, 38u and 40u respectively.

Thus, the structure of an atom of argon-38 and argon-40 is slightly different as they are isotopes. Argon 40 has more atomic mass than argon-38. But, both contain the same number of protons. They have similar chemical properties but different physical properties.

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Which of the following is most clearly a benefit of genetic engineering?

Answers

The production of insulin hormone by the bacterial genes is the most likely benefit of genetic engineering.

Answer:

The production of insulin hormone by the bacterial genes is the most likely benefit of genetic engineering-

Explanation:

production of human insulin through genetic modification of bacterial genes

D

A tick crawls onto a cat and attaches to the cat's skin which type of symbiotic relationship is being described​

Answers

Answer:

Parasitism!

Explanation:

The tick is being benefited while the cat suffers.

why are some penguin species geographically isolated from other penguin species?

Answers

Answer:

Penguins generally live on islands and remote continental regions free from land predators, where their inability to fly is not detrimental to their survival. Penguins are usually found near nutrient-rich, cold-water currents that provide an abundant supply of food. ...

Explanation:

Penguins generally live on islands and remote continental regions free from land predators, where their inability to fly is not detrimental to their survival. Penguins are usually found near nutrient-rich, cold-water currents that provide an abundant supply of food.

What do you mean by predators?

Predators are organisms that hunt and kill other organisms for food. The organisms that are consumed by the predators are known as the prey. Predators can be carnivores and omnivores. Lions, tigers, sharks, and snakes, all are predators.

Moreover, the best-known examples of predation involve carnivorous interactions, in which one animal consumes another. Think of wolves hunting moose, owls hunting mice, or shrews hunting worms and insects.

Therefore, predators are wild animals that hunt, or prey on, other animals. All animals need food to live. Predator animals need the flesh of the animals that they kill to survive. Weasels, hawks, wolves, mountain lions, and grizzly bears are all predators.

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A genetic disorder is caused by a mutation on DNA.
A. True
B. False

Answers

Answer:

True

Explanation:

Genetic disorders can be caused by a mutation in one gene(monogenic disorder) by mutations in multiple genes

The role of which bodily system is to protect the body from diseases?

A. excretory
B. nervous
C. lymphatic
D. endocrine

Answers

Answer:

lymphatic

Explanation:

It contains your immune system that helps you fight off diseases

Do you think genetics play a role in the different skin colors we have on the top of our arms vs the bottom? Why or why not?

Answers

Answer:

the top of our arms may be darker because they get more exposure to the sun than under our arms causing them to be lighter

Distinguish between phenotype and genotype.

Answers

Explanation:

Phenotype is the PHyiscal trait e.g height, eye colour and blood type.

Genotype is the GENE of the trait or the alleles. E.g height; tall is T, short is t. these are the alleles that could make up the height.

A genotype refers to the genetic characteristics of an organism. A phenotype refers to the physical characteristics. For example, having blue eyes (an autosomal recessive trait) is a phenotype; lacking the gene for brown eyes is a genotype.

What is the number of chromosomes for diploid frog cells?
If a frog had 26 chromosomes would the cell be diploid or haploid?​

Answers

Answer:

What is the number of chromosomes for diploid frog cells?

26

If a frog had 26 chromosomes would the cell be diploid or haploid?

diploid

-TheUnknownScientist

Answer:

26

diploid .............

While playing baseball with his friends, Reyes was almost hit in the face with a fast ball. Neurotransmitters in his _____ were released, triggering the firing of neurons throughout his brain and the release of chemicals throughout his body. His heart beat quickened, his pupils dilated, and his respiration increased.

Answers

hypothalamus

I hope this helps

hypothalamus

I hope this helps

I NEED SOME HELP...
What are ions
14 points if you answer this

Answers

Answer:

Ions are an atom or group of atoms that either has a positive or negative charge. An ion with a negative charge is called an anion and one with a positive charge is a cation.

Hope this helps :)

An ion is a particle, an atom or molecule. It is an atom that has a net electrical charge in which the total number of electrons is not equal to the total number of protons, giving the atom a net positive or negative electrical charge.

9. The Sun provides Earth with both light and thermal energy. Which of
the following is an example of the Sun's thermal energy at work in the
water cycle?
a. Accumulation
b. Precipitation
C. Condensation
8
d. Evaporation

Answers

Answer: The answer is d!

Explanation:

Do you think that plants can get the building materials they need to grow from soil wateror air? Which ones? Explain your answer

Answers

All of them. Air because in helps make food it also lets the plant breath. Water because it helps move nutrients into the plant. Soil because plants can’t grow without soil.

6. Everyone in Squidward's family has light blue skin, which is the dominant trait for body color in his
hometown of Squid Valley. His family brags that they are a "purebred" line. He recently married a nice girl
who has light green skin, which is a recessive trait. Create a Punnett square to show the possibilities that would
result if Squidward and his new bride had children. Use B to represent the dominant gene and b to represent
the recessive gene.
A. List the possible genotypes and phenotypes for their children.
Bb - light blue skin
ВІ Вь
Bb
B В
Bb
Bb
B. What are the chances of a child with light blue skin? 100%
C. What are the chances of a child with light green skin?_0_%
D. Would Squidward's children still be considered purebreds? Explain!
They wouldn't be considerd pure bred. Each has a gene
made of a dominant and ressive gene.
7. Assume that one of Squidward's sons, who is heterozygous for the light blue body color, married a girl that
was also heterozygous. Create a Punnett square to show the possibilities that would result if they had children.
A. List the possible genotypes and phenotypes for their children.
B. What are the chances of a child with light blue skin?
%
C. What are the chances of a child with light green skin?
%

Answers

Answer:

The chances of a child with light blue skin is 100% and the chances of a child are 50%

Explanation:

Chromosomes often exchange segments of DNA during meiosis. How might this increase the survival of a species?

Answers

Answer:

Because of recombination and independent assortment in meiosis, each gamete contains a different set of DNA. This produces a unique combination of genes in the resulting zygote. Recombination or crossing over occurs during prophase

please answer this. i need this.

Answers

Answer:

The scorpions

Explanation:

If you look the scorpion would only eat the insects so if the insects were removed then the scorpions wouldn't have any food and would die out causing extinction.

         Hope I helped!    Have a good day! . . . . or don't its up to you-

20 points real answers would be amazing thank you!

Which of these is a property of tsunami waves? (1 point)
high frequency
very high speed
short wavelengths
very large amplitude

Answers

Answer: The answer would be high frequency

Explanation:

Can someone help lol

Answers

Answer:

False

True

False (it’s suppose to Be “on earth” not “at) or maybe it’s True

False

False (trophere)

False (nitrogen, oxygen is only 21%)

True

Explanation:

Which of the following statement is NOT true about Eukaryotic
cells?
o They are bigger and more complex than prokaryotes.
o They have membrane bound Organelles
o They do not have a nucleus
o Their DNA forms chromosomes

Answers

Answer:

they do not have nucleus

Answer:

they do not have a nucleus

What are the answers to 10 and 11?

Answers

Answer:

The correct answer is -

10. 20 J

11. 29.31 %

Explanation:

According to the law of 10% energy transfer, the energy only transfers 10% energy from one tropic level to another and the rest 90% lost in the form of heat during the metabolic and excretion process.

So, 2000 J transfers only ten percent to the primary consumer that is 200 J and then ten percent of that transfers to long-tailed weasels that are 20 J.

11. The percentage efficiency -= energy after transfer*100/transfer before the transfer

= 350*100/1170 = 29.31%

please help >:((((

Your stomach is growling and your mouth is dry. You just remembered you skipped lunch today. After school you go to the fridge, eat an apple and drink some milk. A. What is the imbalance? B. How did the systems work together to correct the imbalance? C. What is the importance of the circulatory system in the case studies?

Answers

Answer:

C. What is the importance of the circulatory system in the case studies?

Explanation:

write a 5-7 sentence paragraph explaining what happens to co2 levels in the world over the course of the year. add as much context and details as you can

Answers

Answer:

The amount of CO2 found in the atmosphere varies over the course of a year. Much of this variation happens because of the role of plants in the carbon cycle. Respiration happens all the time, but dominates during the colder months of the year, resulting in higher CO2 levels in the atmosphere during those months.

Explanation:

which statement about DNA replication is true?

A. Prokaryotes only have one origin of replication to initiate replication
B. Prokaryotes can only replicate their single circular chromosome in the nucleus.
C. Eukaryotes can only replicate one segment of a chromosome at a time.
D. Eukaryotes only have one circular chromosome that unwinds at multiple locations.

Answers

C because you have to guess c everytime you don’t know

what's antibiotic resistance and three cause of antibiotic resistance?​

Answers

Answer:

antimicrobial resistance

Explanation:

when we use antibiotics some bacteria die but resistant bacteria can survive and even multiply. The overuse of antibiotics make resistant bacteria become more common. The more we use antibiotics the more chances resistant bacteria have to become resistant to them

11. Question: Imagine 20 babies were born. 10 had blue eyes, and 10 had brown eyes. What traits do their parents probably have?

Answers

Answer:

The correct answer is - brown heterozygous Bb and blue eye bb.

Explanation:

In the provided question it is given that there are 20 babies born, 10 babies had blue eyes and 10 had brown eyes. As it is known that brown eyes are dominant over blue eyes, therefore, on the basis of this we can say that all blue-eyed babies have a bb genotype and as brown eyes are dominant traits babies must have at least one copy of the B allele which represents brown eye trait.

case1:

Parent 1 : bb

parent 2: BB

   B      B

b  Bb   Bb

b   Bb   Bb

there are 100% brown eye offspring so this is not the case

case 2:

Parent 1 : bb

parent 2: Bb

   B      b

b  Bb   bb

b   Bb   bb

here, 50% brown eyes and 50% blue eyes offspring produced thus, the parent trait will be brown heterozygous and blue eye.

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